4" Inseam 360 stretch fabric prevents riding up and wedgies, even during the most intense work outs. Designed for the gym and performance. Anti-microbial and anti-odor. Stay-Put waistband that won't roll, bunch, or pinch. Contour Pouch to nestle the boys–no adjustment needed. Quick Draw® Fly–horizontal fly for quick access when nature calls. Machine wash cold. Tumble dry low. Fabric: 84% Polyester, 16% Spandex